spring-security-oauth2 2.0.7 refresh token UserDetailsService Configuration - UserDetailsService is required

Question

I would have one question regarding the configuration of spring-security-oauth2 2.0.7 please. I am doing the Authentication using LDAP via a GlobalAuthenticationConfigurerAdapter:

@SpringBootApplication
@Controller
@SessionAttributes("authorizationRequest")
public class AuthorizationServer extends WebMvcConfigurerAdapter {

    public static void main(String[] args) {
        SpringApplication.run(AuthorizationServer.class, args);
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/login").setViewName("login");
        registry.addViewController("/oauth/confirm_access").setViewName("authorize");
    }

    @Configuration
    public static class JwtConfiguration {

        @Bean
        public JwtAccessTokenConverter jwtAccessTokenConverter() {
            JwtAccessTokenConverter converter = new JwtAccessTokenConverter();
            KeyPair keyPair = new KeyStoreKeyFactory(
                    new ClassPathResource("keystore.jks"), "foobar".toCharArray())
                    .getKeyPair("test");
            converter.setKeyPair(keyPair);
            return converter;
        }

        @Bean
        public JwtTokenStore jwtTokenStore(){
            return new JwtTokenStore(jwtAccessTokenConverter());
        }
    }


    @Configuration
    @EnableAuthorizationServer
    public static class OAuth2Config extends AuthorizationServerConfigurerAdapter implements EnvironmentAware {

        private static final String ENV_OAUTH = "authentication.oauth.";
        private static final String PROP_CLIENTID = "clientid";
        private static final String PROP_SECRET = "secret";
        private static final String PROP_TOKEN_VALIDITY_SECONDS = "tokenValidityInSeconds";

        private RelaxedPropertyResolver propertyResolver;

        @Inject
        private AuthenticationManager authenticationManager;

        @Inject
        private JwtAccessTokenConverter jwtAccessTokenConverter;

        @Inject
        private JwtTokenStore jwtTokenStore;

        @Inject
        private UserDetailsService userDetailsService;

        @Override
        public void setEnvironment(Environment environment) {
            this.propertyResolver = new RelaxedPropertyResolver(environment, ENV_OAUTH);
        }

        @Bean
        @Primary
        public DefaultTokenServices tokenServices() {
            DefaultTokenServices tokenServices = new DefaultTokenServices();
            tokenServices.setSupportRefreshToken(true);
            tokenServices.setTokenStore(jwtTokenStore);
            tokenServices.setAuthenticationManager(authenticationManager);
            return tokenServices;
        }


        @Override
        public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
            endpoints.authenticationManager(authenticationManager).tokenStore(jwtTokenStore).accessTokenConverter(
                    jwtAccessTokenConverter).userDetailsService(userDetailsService);
        }

        @Override
        public void configure(AuthorizationServerSecurityConfigurer oauthServer)
                throws Exception {
            oauthServer.tokenKeyAccess("permitAll()").checkTokenAccess(
                    "isAuthenticated()");
        }

        @Override
        public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
            clients.inMemory()
                    .withClient(propertyResolver.getProperty(PROP_CLIENTID))
                    .scopes("read", "write")
                    .authorities(AuthoritiesConstants.ADMIN, AuthoritiesConstants.USER)
                    .authorizedGrantTypes("authorization_code", "refresh_token", "password")
                    .secret(propertyResolver.getProperty(PROP_SECRET))
                    .accessTokenValiditySeconds(propertyResolver.getProperty(PROP_TOKEN_VALIDITY_SECONDS, Integer.class, 1800));
        }
    }

    @Configuration
    @Order(-10)
    protected static class WebSecurityConfig extends WebSecurityConfigurerAdapter {

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http
                    .formLogin().loginPage("/login").permitAll()
                    .and()
                    .requestMatchers().antMatchers("/login", "/oauth/authorize", "/oauth/confirm_access")
                    .and()
                    .authorizeRequests().anyRequest().authenticated();
        }

        @Bean
        @Override
        public AuthenticationManager authenticationManagerBean() throws Exception {
            return super.authenticationManagerBean();
        }

        @Bean
        @Override
        public UserDetailsService userDetailsServiceBean() throws Exception {
            return super.userDetailsServiceBean();
        }
    }

    @Configuration
    protected static class AuthenticationConfiguration extends
            GlobalAuthenticationConfigurerAdapter {

        @Override
        public void init(AuthenticationManagerBuilder auth) throws Exception {
            auth
                    .ldapAuthentication()
                    .userDnPatterns("uid={0},ou=people")
                    .groupSearchBase("ou=groups")
                    .contextSource().ldif("classpath:test-server.ldif");
        }
    }
}

While the refresh token works fine with the release 2.0.6 of spring-security-oauth2, it does not work anymore with the version 2.0.7. As read here, one should set the AuthenticationManager to be used when trying to get a new access token during the refresh.

As far as I understand, this has something to do with the following change of spring-security-oauth2.

I unfortunately did not manage to set it up properly.

org.springframework.security.oauth2.provider.token.DefaultTokenServices#setAuthenticationManager

is called and gets an AuthenticationManager injected. I an not sure I understand how the LdapUserDetailsService is then going to be injected. The only thing I see is that the PreAuthenticatedAuthenticationProvider is going to be called while trying to re-authenticate the user during the token refresh call.

Can anyone advise me on how to do it please?

ps: The exception I am getting is the following:

p.PreAuthenticatedAuthenticationProvider : PreAuthenticated authentication request: org.springframework.security.web.authentication.preauth.PreAuthenticatedAuthenticationToken@5775: Principal: org.springframework.security.authentication.UsernamePasswordAuthenticationToken@441d5545: Principal: bob; Credentials: [PROTECTED]; Authenticated: true; Details: null; Granted Authorities: ROLE_USER; Credentials: [PROTECTED]; Authenticated: true; Details: null; Granted Authorities: ROLE_USER
o.s.s.o.provider.endpoint.TokenEndpoint  : Handling error: IllegalStateException, UserDetailsService is required.

Answer 1

I had a similar issue when I was implementing a a OAuth2 server with JWT tokens with a custom AuthenticationProvider instead of a UserDetailsService implementation to solve login authentications.

But lately I found that the error Spring raises is correct if you want the refresh_token working correctly. For an AuthenticationProvider implementation is impossible to refresh a token with a refresh_token, because in that kind of implementation you have to resolve if the password is correct, but the refresh token doesn't have that information. However, UserDetailsService is agnostic of the password.

The version 2.0.6 of spring-security-oauth2 works because never checks the user grants, just checks if the refresh token is valid (signed with the private key), but, if the user was deleted from the system after a first login, with a refresh token the deleted user will have infinite time access to your system, that is a big security issue.

Take a look to the issue I reported with this: https://github.com/spring-projects/spring-security-oauth/issues/813